The Nd YAG laser vein treatment has the correct wavelength to be optimally absorbed by the red pigment in the blood cells, this, in turn, generates heat that causes inflammation on the inner lining of the thread veins. This causes swelling and hence occlusion of the veins.
The same modality also treats Spider Naevi and red blood spots, known as cherry angioma. This is a benign, non-cancerous, skin growth that consists of a clump of blood vessels. They are fairly common and should not cause you any concern. Cherry angiomas can vary in size from as small as a pinhead to about a quarter of an inch in diameter. They are bright cherry red in colour and can either be smooth or raised from your skin.